Home / 816,890.76-1,225,336.68-255,969

Finding the Fourth Proportional to 816,890.76, 1,225,336.68 and 255,969

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Solution

The fourth proportional to 816,890.76, 1,225,336.68 and 255,969 is: 383,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,890.76 : 1,225,336.68 = 255,969 : x
  2. Step 2: Convert to fraction form
    816,890.76/1,225,336.68 = 255,969/x
  3. Step 3: Cross multiply
    816,890.76x = 1,225,336.68 × 255,969
  4. Step 4: Simplify right side
    816,890.76x = 313,648,204,642.92
  5. Step 5: Solve for x
    x = 313,648,204,642.92/816,890.76
  6. Step 6: Final answer
    x = 383,953.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.